Filter block for liquid filtration



FIG. 1 is a front-right perspective view of the invented design for a filter block for liquid filtration.

FIG. 2 is a front view of the filter block of FIG. 1, wherein the right side view would be a mirror image of the front view.

FIG. 3 is a rear view of the filter block of FIG. 1, wherein the left side view would be a mirror image of the rear view.

FIG. 4 is a top view of the filter block of FIG. 1.

FIG. 5 is a bottom view of the filter block of FIG. 1; and,

FIG. 6 is a cross-sectional view of the filter block of FIG. 1, viewed along line 6-6 in FIG. 4, and wherein stippling indicates the cut surface. 

The ornamental design for a filter block for liquid filtration, as shown and described. 